Firmware Downgrade

[Daz351]

Hi im a newbie to this site and i need some help
i recently upgraded my cd/rw module in my notebook
i have a sony crx700e
problem is now ive learnt that the new version 1.4u now will not allow me to burn safedisc and safedisc2 protected cd games
i am very upset that i cant back up my own games
so what i learnt is too downgrade back to a version that works
problem is i dont have a lower version and i cant find one or a link to one , ive found the same updated version but not a lower one
can anybody at all lead me to a solution or a link
beleive me i have looked everywhere on the net so far
maybe someone has a dell notebook with the same cd/rw module i have
look forward to anybody comments that can help
thanks daz351
IS THERE ANYBODY WITH ANY KNOWLEGDE OUT THERE ?